Apple's new 12-inch MacBook , released in March this year, has been on sale, with a slim and cool look popular, of course, with many users from Windows to the Mac camp. Many accustomed to Windows operating habits of users in the hands of the Mac will feel very difficult to use, in fact, as long as the MAC system shortcut key to understand, can quickly improve operational efficiency. Today we'll take a look at the common shortcuts and their uses for Ma
is the touch bar really chicken ribs? In a spat, the new MacBook Pro, which starts at 13888 Yuan, is quickly labeled "low cost". In addition to making the new Mac more expensive, does the touch bar have any effect? In fact, Touchbar is not flashy, it has 17 features you can try:
Common functions: such as volume control, screen brightness, the ESC key will always be displayed in touch bar, but the rest of the case will be based on the operat
' pplr7t ' font file, I cannot find file ' pplr7t 'Refer to:
Https://tex.stackexchange.com/questions/98087/missing-pplr7t-font-file
2. How to install extra fonts?At first, what do you should the find which package includes this font, so how to know it?Using 'tlmgr' (after install MacTeX, we'll have it)Tlmgr--helpsudo tlmgr search--global-file pplr7tIt shows That:file 'pplr7t' is in the ' Palatino ' package, so I need to install Palatino Pack Age. How to install the package?sudo In
under MacReason:When the first SSH connection is made, an authentication is generated that is stored in the client (that is, the one that known_hosts the other computer with SSH),However, if the server is verified, the authentication information will certainly change, the server side and the client is not the same, will be out of error ~ so as long as the computer in the certificationThe message is deleted, the connection is regenerated (delete instruction: ssh-keygen-r input server IP)Trouble
Tags: open terminal installation technology WWW app pre width. com OpenPrevent the non-good reptile, the beginning attached the original link: http://www.cnblogs.com/xueyudlut/p/7810981.html------Split Line------------------------------The new Mac system eliminates any source options in security and privacy, but how do high-users like me in the Big kingdom go to the app Store to spend money on software?However, all kinds of cracked software need to be in the option, tick any source, otherwise ea
Tags: GPO add CBO Information Pre config compare user logIn fact, choose to choose, or iterm2 is enough, the only more troublesome is that each time there is the input address and user name, in fact, can be shortened by the configuration file.You can ~/.ssh/config configure the information in the file alias , and later, ssh according to alias. Such as:Host alias-name HostName ip_address Port 22 User userThis method can also configure the SSH private key, so that even when the connection to
Screensiz. es helps you quickly find the screen types of the most popular devices and monitors on the market. Dimensional Data comes from Wikipedia and uses pixel density for better understanding. Estimation of popularity from Google queries (Estimation of AdWords traffic) and some fuzzy mathematical algorithms.Articles you may be interested in
Metronic-Bootstrap-based responsive background management template
Verlet-js: Awesome open-source Java
Ngios The first disk partition is monitored by default, you need to define multiple monitoring items in the service, such as:defineservice{ service_description check_disk3 max_check_attempts 3 check_interval 1 retry_interval 3 notification_interval 0 notification_options w,u,c,r,f,s notifications_enabled 1 check_command check_nrpe!check_disk3 check_period 24x7 notification_period 24x7 host_name afa_ebs_db}defineservice{ service_description check_disk4 max_check_attempts 3 check_interval 1 ret
Analysis of how SiteScope monitors resources such as Linux or UnixCPU memory-Linux Enterprise Application-Linux server application information. The following is a detailed description. The working principle of SiteScope in Linux (Unix) monitoring is as follows: SiteScope logs on to Linux (Unix) through different connection methods (note: the logon method can be ssh, telnet, rsh, rlogin), and then execute the corresponding commands in the login termina
remote DBs may be having problemsORA-3113:Ora-3136:inbound Connection timed outORA-1555: Snapshot Too old: Fallback segment number in the name "" Too small snapshot tooORA-1461: You can only assign a long value to insert a long columnORA-00600: DeadlockORA-1580: Error Creating control backup fileOra-27054:nfs file system where the file is created or resides are not mounted with correct optionsORA-6512: Similar to this Ora-06512:at "SYS. Dbms_isched ", Line 3761Ora-06512:at "SYS. Dbms_isched ",
Article Title: monitors the usage of Linux system resources. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
Although the Linux operating system is much more stable than the Windows operating system. However, this stability is relative. That is to say, the Linux operating system may also get angry. In some cases, t
of NIC that matches the type of network card that is being alerted, the problem is foundView the monitoring entries for Nagios monitoring 245 network card traffic:650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/57/6A/wKiom1SZXhvyrjo0AAEosYQ8IxM094.jpg "title=" 5.jpg " alt= "Wkiom1szxhvyrjo0aaeosyq8ixm094.jpg"/>
5. It is found that the monitor is the interface of the network card 11, and 11 the corresponding network card type is not the network card type on the actual 245. Figure 15
;NBSP;NBSP;0}I'm also a split line ************************************Error message7. Nagios Server Errorunknown-read or Write file/var/tmp/check_traffic_192.168.1.247_2__itnms.hist_dat_64 Error with User uid=501 (Nagios) G id=503 (Nagcmd) groups=502 (Nagios), 503 (nagcmd). Workaround:chmod nagios.nagcmd /var/tmp/check_traffic_192.168.1.247_2__itnms.hist_dat_64 This article is from the "Linux related sharing" blog, make sure to keep this source http://2860664.blog.51cto.com/2850664/1567068Na
Article Title: Linux Server monitors and loads hardware information in real time. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
Linux Server monitoring: real-time monitoring of loading hardware information
One of the notable features of Linux is its extraordinary stability. However, if your hardware is defective
Nagios (Icinga) monitors HP server hardware information with the CHECK_HP pluginHttp://cpan.metacpan.org/authors/id/D/DT/DTOWN/Net-SNMP-v6.0.1.tar.gzhttp://exchange.nagios.org/directory/plugins/hardware/server-hardware/hp-(COMPAQ)/check_hp/detailsMonitored side:$ sudo apt-get install SNMPD$ sudo vi/etc/snmp/snmpd.conf (written under access control, it is partially removed above, except for the remainder of the access control)Press A or I to enter edit
Nagios monitors HP server hardware information with the CHECK_HPASM plugin:Http://labs.consol.de/wp-content/uploads/2011/10/check_hpasm-4.3.tar.gzMonitored side:$ sudo tar zxfv check_hpasm-4.3.tar.gz$ CD Check_hpasm$./configure--enable-hpacucli--enable-perfdata--enable-extendedinfo$ sudo make$ sudo make install$ sudo vi/etc/nagios/nrpe.cfgCommand[check_hpasm]=/usr/local/nagios/libexec/check_hpasm--perfdata Short: Wq$ sudo service nagios-nrpe-server re
Nagios monitors dell server hardware
We have mentioned earlier that omsa is used to monitor dell servers, but it must be accessed through web. This time we use nagios + check_openmanage to monitor the hardware of dell servers.
First, let's look at the figure below:
We can see that there are two ways to achieve monitoring:
1. The nagios server check_nrpe calls the check_openmanage of the monitored server. This method requires omsa and check_openmanage
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